we have a new to us 2005 Viking 2465st - which has more than we could have expected - including a shower. My assumption was that it drained to the same place as the sink water - an outlet on the side of the body. Of course, thinking twice, the shower water would need to be 'lifted' (or pumped) to reach the level of the water outlet. So, how does the shower drain? Yesterday, I made my first foray under the chassis mostly to look at the mechanics of the lift system, but I noted a large (over 1") diameter drain plugged. But, the tether on the cap was rotted off and there was a hole right in the middle of the cap - which I assume had been plugged with the tether end. So, if that IS the cap from the shower, it would leak as it sits right now (before we unplugged it). I see nothing in the owner's manual about shower operation. Does anyone have any ideas on how this model drains the shower? and if this is the drain on the bottom, what is the practical way of capturing the water?? ps, there is also a wooden boxed 'thing' on the curb side rear underneath. The box is about the size of an adult shoebox. Any ideas what that might contain? or protect? or ??? thanks in advance for your answers - or speculation.